Final answer:
The group most at-risk for angioinvasive aspergillosis are individuals with suppressed or underdeveloped immune systems.
Step-by-step explanation:
The group most at-risk for angioinvasive aspergillosis are individuals with suppressed or underdeveloped immune systems. This includes patients who are immunocompromised, such as those with HIV/AIDS or undergoing chemotherapy, as well as organ transplant recipients who require immunosuppressive medications to prevent rejection. Additionally, individuals with pre-existing lung conditions, such as chronic obstructive pulmonary disease (COPD) or asthma, may also be at higher risk for angioinvasive aspergillosis.